Tech Brief
Using PATA NANDrive™ to Replace Legacy mDOC Designs
What is mDOC?
mDOC is a family of embedded flash drives that provide data storage and execute-in-place (XIP) functionality. mDOC products
have been discontinued, but customers need not worry. PATA NANDrive™ solid state drives (SSDs) provide easy migrationfrom legacy mDOC-based designs and offer customers long-term support. It is an easy-to-use alternative to mDOC on the NOR
memory bus. Similar to mDOC, NANDrive SSDs have a small ball grid array (BGA) form factor, making them suitable for various
embedded applications.

NANDrive™ Advantage Over mDOC

PATA NANDrive has the same pin-out across all capacities
for backward compatibility and 1mm ball pitch for increased
long-term reliability. NANDrive offers built-in advanced
features such as SSD health monitoring, power interrupt dataprotection, user-configurable zones for storing secure dataand “instant” data erase capabilities.

Portable Platforms
Data Logger

I2C

Touchscreen
Controller

SPIColor
Display

Display
Controller

POS
Terminal

UARTSensor

SensorInterface

ARM CPUImaging /Video / Audio
Accelerator

2D / 3D
Graphics
Accelerator

Image Signal
Processor

Memory Bus

mDOC required a specific driver on the host system inorder to operate. When there was a new mDOC revision,it often required software changes. PATA NANDrive uses
the industry standard ATA interface and does not need any
special flash translation layer (FTL) drivers. The ATA Task
File registers are accessed on the memory bus and most of
the host interface signals in PATA NANDrive operate in thesame manner as in mDOC.

www.NANDrive.com

Typical Memory Bus Design Using NANDrive

PATA NANDrive Compared to mDOC
Category

Characteristic

PATA NANDrive

mDOC H3

Up to 32 GB

Up to 8 GB

Expansion using master/slave
mode with another NANDrive

Expansion using
cascading with another mDOC

HostInterface

Standard ATA/IDE Bus
ATA 6.0 compatible

mDOC specific driverFlash File
System (FFS)

On chip

On chip

XIP Boot
Block

Achieved through external NOR

32 KBytes

20 Byte security ID

16 Byte security ID

Configurable protection zones

Protection zones

PowerConsumption

Standby mode: 0.7 mA (typical)

Standby mode: Up to 5 mA

Sequential
Read

Up to 60 MB/s

Up to 25 MB/s

Sequential
Write

Up to 40 MB/s

Up to 9 MB/s

OperatingTemperature

0°C to +70°C (Commercial)-40°C to +85°C (Industrial)

0°C to +70°C (Commercial)-40°C to +85°C (Industrial)

PackagePin-out backward compatible

Pin-out backward compatible

Capacity

FeatureSecurity

Performance

Form Factor

For more information, please contact your local Greenliant sales channel. See the “Sales” section of Greenliant.com for complete listings.
© 2013 Greenliant Systems. Greenliant, the Greenliant logo and NANDrive are either registered trademarks or trademarks of GreenliantSystems. mDOC is a trademark of SanDisk. All other trademarks are the property of their respective owners. These specifications aresubject to change without notice. 10/2013

Applications— Set-top box / Net-top box— Video conferencing— Multi-function printer— VoIP system / PBX— Point of Sale terminal— Data logger— VoIP system / PBX— Wireless base station— Router / Gateway / Switch— Ultrasound and medical imaging— Industrial automation & control— Test & measurement instrumentation— Video surveillance / ID terminal— In-flight infotainment

Greenliant Systems
3970 Freedom Circle, Suite 100
Santa Clara, CA 95054 USA
Tel. 1-408-200-8000
Fax 1-408-200-8099
www.Greenliant.com